Subiquity Shows Guided Storage Passphrase in Plaintext with Read-all Permissions

published 2024-06-03 2 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15677

cvss: 8.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits: 0; none known

Patch / fix

fixed in 2 links 2

Canonical Ltd. subiquity 22.02.1
canonical subiquity 22.02.1

github.com/canonical/subiquity#1181 pull request
github.com/canonical/subiquity#1182 pull request

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-06-05)

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

bugs.launchpad.net https://bugs.launchpad.net/subiquity/+bug/1960162 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.4	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	8.4	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Canonical Ltd. subiquity
canonical subiquity

Classification

Weakness

CWE-256 Plaintext Storage of a Password

References

github.com /canonical/subiquity/pull/1181
issue-tracking, patch
github.com /canonical/subiquity/pull/1182
issue-tracking, patch
bugs.launchpad.net /subiquity/+bug/1960162
issue-tracking, exploit
cve.org /CVERecord?id=CVE-2022-0555
issue-tracking, third-party-advisory

Sources

CVE List CVE-2022-0555
NVD CVE-2022-0555

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary